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83001602.Kf
III.
Maintenance intervals in accordance with the VDMA
Explanation
Annual
Six-
monthly
As
required
Remark
Compressor
1
Optical check for dirt, damage and corrosion
x
x
2
Check fixing, check running noises
x
3
Measure the intake pressure
x
4
Measure the suction gas temperature upstream of the
compressor
x
5
Measure the compression end temperature at the
discharge port
x
6
Check the oil level
x
7
Check the acid content of the oil (acid test)
x
8
Oil change
x
9
Check that the crankcase heater is working
x
10 Check that the output control is working
x
11 Check the refrigerant side for leaks
x
12 Check high/low pressure switching equipment
x
Air-cooled condenser
20 Optical check for dirt, damage and corrosion
x
x
21 Measure the condensing temperature
x
22 Measure the refrigerant side supercooling
temperature at the condenser outlet
x
23 Measure the medium temperature at condenser inlet
and outlet
x
24 Check that the condensation pressure control is
functioning properly
x
25 Check the refrigerant side for leaks
x
Evaporator
30 Optical check for dirt, damage and corrosion
x
31 Measure refrigerant overheating temperature
x
32 Measure the medium temperature at the evaporator
inlet and outlet
x
33 Measure the anti-freeze temperature (freezing point)
of the heat transfer media
x
34 Check the water and refrigerant side for leaks
x
